Yuichi Asahina

ORCID: 0000-0001-8711-282X
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About
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Research Areas
  • Glaucoma and retinal disorders
  • Retinal and Macular Surgery
  • Retinal Diseases and Treatments
  • Corneal surgery and disorders
  • Retinal Development and Disorders
  • Esophageal Cancer Research and Treatment
  • Advanced Synthetic Organic Chemistry
  • Genetic and rare skin diseases.
  • Digestive system and related health
  • Histiocytic Disorders and Treatments
  • Plant-derived Lignans Synthesis and Bioactivity
  • Marine Invertebrate Physiology and Ecology
  • Vascular Malformations Diagnosis and Treatment
  • Dermatologic Treatments and Research
  • Ocular Oncology and Treatments
  • Genetic factors in colorectal cancer
  • Retinal Imaging and Analysis
  • Corneal Surgery and Treatments
  • Pancreatic and Hepatic Oncology Research
  • Chemical synthesis and alkaloids
  • Colorectal Cancer Surgical Treatments
  • Intraocular Surgery and Lenses
  • Gastric Cancer Management and Outcomes
  • Traumatic Ocular and Foreign Body Injuries

The University of Tokyo
1907-2025

University of Tokyo Hospital
2023-2024

NTT Medical Center
2022

The purpose of the current study was to investigate structure-function relationship in patients with retinitis pigmentosa (RP) using optical coherence tomography and MP-3 microperimeter. Visual field (VF) measurements were carried out microperimetry Humphrey Field Analyzer (HFA, Carl-Zeiss, CA), 22 eyes 11 a clinical diagnosis RP, both 10-2 test grid pattern. Optical (OCT, Spectralis, Heidelberg, Germany) also performed ellipsoid zone (EZ) identified OCT image. mean (±SD) number points...

10.1038/s41598-017-16143-5 article EN cc-by Scientific Reports 2017-11-13

Purpose To evaluate the visual outcomes of vitrectomy for lamellar macular hole (LMH) and epiretinal membrane (ERM) foveoschisis to investigate prognostic factor postoperative acuity. Methods We retrospectively reviewed 15 LMH 17 ERM eyes that had undergone a standard three-port pars plana with (12 eyes) or without (20 cataract surgery. Best-corrected acuity (BCVA) at three months final visit were compared preoperative measurements. investigated relationship between BCVA baseline parameters...

10.1371/journal.pone.0247509 article EN cc-by PLoS ONE 2021-02-22

This study evaluated the outcomes of surgical cystotomy for recurrent diabetic cystoid macular edema (CME).We analyzed 20 eyes with a clinical diagnosis retinopathy and refractory CME. Release vitreoretinal adhesion, epiretinal membrane (ERM) internal limiting (ILM) peeling guided by intraoperative optical coherence tomography (iOCT) were performed in every patient. Pars plana vitrectomy was also 17 patients, 11 whom underwent lensectomy intraocular lens implantation. Central retinal...

10.2147/opth.s150385 article EN cc-by-nc Clinical ophthalmology 2017-11-01

Abstract Background Although much progress has been made in diagnosis of carcinomas, no established methods have confirmed to elucidate their morphological features. Methods Three-dimensional structure esophageal carcinomas was assessed using transparency-enhancing technology. Endoscopically resected squamous cell carcinoma fluorescently stained, optically cleared a reagent called LUCID, and visualized laser scanning microscopy. The resulting microscope images were converted virtual HE for...

10.1007/s10388-024-01055-x article EN cc-by Esophagus 2024-03-18

This report aimed to present a case of corneal fibrosis with prolonged atopic blepharitis caused by psychological resistance steroid treatment.A 49-year-old woman presented dermatitis and history panic attack autism spectrum disorder. The upper lower eyelid margins her right eye became adherent, the remained closed for several years due refusal treatment aggravation blepharitis. During initial examination, lesion elevated white opacity on surface was observed. Subsequently, superficial...

10.1016/j.ajoc.2023.101819 article EN cc-by-nc-nd American Journal of Ophthalmology Case Reports 2023-02-15

Inflammatory juvenile conjunctival nevus (IJCN) is a rare condition affecting both children and adolescents. It has misleading clinical histopathological features; therefore, careful assessment necessary. We present case of IJCN with pathological type features.

10.1159/000538593 article EN cc-by-nc Case Reports in Ophthalmology 2024-05-17

Corneal graft detachment is a major postoperative complication of Descemet's stripping automated endothelial keratoplasty (DSAEK). When corneal becomes detached, function generally fails, and repeat transplantation required. Herein, we report rare case in which transparent cornea was maintained after the removal dislocated DSAEK graft.

10.1159/000539392 article EN cc-by-nc Case Reports in Ophthalmology 2024-06-26

Special AT-rich sequence-binding protein 2 (SATB2) is a novel, diagnostically useful, and highly sensitive immunohistochemical marker for both primary metastatic colorectal or appendiceal tumors. In the present study, we aimed to assess impact of neoadjuvant chemotherapy on SATB2 expression in carcinomas their corresponding liver metastases. Forty-four patients with who received were included. specimens biopsy, resected carcinomas, foci examined by immunohistochemistry compared caudal-type...

10.1177/10668969221088881 article EN International Journal of Surgical Pathology 2022-03-27
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